Jefferson Valley - Yorktown Rainfall ForecastUnited StatesNYWestchester CountyJefferson Valley - YorktownToday 16 Apr15%Thu 17 Apr5%Fri 18 Apr15%Sat 19 Apr30%Sun 20 Apr15%Mon 21 Apr15%Tue 22 Apr35%Jefferson Valley - Yorktown rainfall forecast issued today at 3:04 pm. Next forecast at approx. 5:04 am.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast NOAA Rain Today Real-Time Upton RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads